Lea Michele's Mix-It-Up Routine

Lea Michele's bod, sculpted by yoga, hiking and gym sessions, has us Gleeking out! Mixing up your routine helps protect your body, and so does this sweet trick: Drink tart-cherry juice before your workout and you can reduce muscle aches by 67 percent. Sore no more!

Jennifer Lawrence's Fun Run

Is it just us, or is Jennifer Lawrence (whose The House at the End of the Street is in theaters now) looking hotter and more toned than ever? Take your run A-list by adding bursts of speed and you could burn 35 percent more fat. Sizzle, sizzle!

Karina Smirnoff's Abs Secret

"You gotta have the abs—your core is key for dancing and paddleboarding!" says Dancing With theStars's Karina Smirnoff.

Steal her move: Stand with feet hip-width apart, arms extended in front of you at shoulder height, palms out. With hips forward, twist torso to right, cross right leg and tap right foot to floor on left side. Return to center. Repeat on opposite side. Continue for 3 minutes.

Miley Cyrus's Ab Sculptor

She's got a serious addiction to pilates. Six times a week, Cyrus is at Mari Winsor's Winsor Pilates in L.A. A top tummy toner is the Double Leg Stretch: Lie on back; pull knees to chest. Lift head and shoulders; extend legs 45 degrees; reach arms behind head. Engage abs as you draw arms and legs back to center. Do 10 reps.

Selena Gomez's Fun Toner

Her favorite workout? Performing! The Biebs's squeeze is on tour this summer with Selena Gomez & The Scene. (Here she's filming the 2013 flick Spring Breakers.) Bust a move at home to her "Shake It Up."

Kat Graham's Allover Shaper-Upper

"No gym for me! I dance my butt off—mostly with ballet—which really works my upper body and gives me a nice, lean look," says The Vampire Diaries's Graham, who is currently on tour to promote her new album. "I'm proudest of my shoulders!"

Ellie Goulding's Run-'n'-Relax Plan

"I honestly think I'll be running until I'm 80. It de-stresses me," says Brit folk-pop sensation Goulding, who sang at Will and Kate's royal wedding. "I live by two beautiful parks, so I never get bored." She also relaxes with yoga and, she says, "lounging out in comfy pj's." Love that!